As he told Stephen Colbert on Wednesday, “At the beginning, he was a businessperson," Cuban explained, laughing off the talk show host’s “billionaire bros” comment. "I wanted to see a change from the traditional politician, but then he went and opened his mouth."

Later on, Cuban laid the smackdown. “Donald, when you’re going through customs and they ask if you have anything to declare, try not to say ‘bankruptcy.’”

Good news for voters: Cuban has an app that’ll allow you to make up your own mind. Or change it.

Simply entitled Register to Vote, the app allows any iOS user to do just that in about 30 seconds by just scanning and submitting their state ID.

Caveat 1: Android users are essentially being disenfranchised.

Caveat 2: Many states will follow up by mailing you a form to the address you provide to verify your signature and residence. So for many people, there will be an additional step. And the app’s only available to people in AZ, CA, CO, CT, IL, LA, MA, MD, MO, NM, PA and UT (there are 25 states that support online registration, and the creators of the app say “they are working hard to add the other states.”)